LU-10003 lnet: use Netlink to support old and new NI APIs.

[fs/lustre-release.git] / lnet / include / lnet / lib-types.h

diff --git a/lnet/include/lnet/lib-types.h b/lnet/include/lnet/lib-types.h
index 4b15d07..2aa823a 100644 (file)
--- a/lnet/include/lnet/lib-types.h
+++ b/lnet/include/lnet/lib-types.h
@@ -334,6 +334,11 @@ struct lnet_lnd {
        /* get dma_dev priority */
        unsigned int (*lnd_get_dev_prio)(struct lnet_ni *ni,
                                         unsigned int dev_idx);
+
+       /* Handle LND specific Netlink handling */
+       int (*lnd_nl_set)(int cmd, struct nlattr *attr, int type, void *data);
+
+       const struct ln_key_list *lnd_keys;
 };
 
 struct lnet_tx_queue {
@@ -455,6 +460,104 @@ struct lnet_net {
        struct list_head        net_rtr_pref_nids;
 };
 
+/* Normally Netlink atttributes are defined in UAPI headers but Lustre is
+ * different in that the ABI is in a constant state of change unlike other
+ * Netlink interfaces. LNet sends a special header to help user land handle
+ * the differences.
+ */
+
+/** enum lnet_net_attrs                      - LNet NI netlink properties
+ *                                     attributes that describe LNet 'NI'
+ *                                     These values are used to piece together
+ *                                     messages for sending and receiving.
+ *
+ * @LNET_NET_ATTR_UNSPEC:              unspecified attribute to catch errors
+ *
+ * @LNET_NET_ATTR_HDR:                 grouping for LNet net data (NLA_NESTED)
+ * @LNET_NET_ATTR_TYPE:                        LNet net this NI belongs to (NLA_STRING)
+ * @LNET_NET_ATTR_LOCAL:               Local NI information (NLA_NESTED)
+ */
+enum lnet_net_attrs {
+       LNET_NET_ATTR_UNSPEC = 0,
+
+       LNET_NET_ATTR_HDR,
+       LNET_NET_ATTR_TYPE,
+       LNET_NET_ATTR_LOCAL,
+
+       __LNET_NET_ATTR_MAX_PLUS_ONE,
+};
+
+#define LNET_NET_ATTR_MAX (__LNET_NET_ATTR_MAX_PLUS_ONE - 1)
+
+/** enum lnet_net_local_ni_attrs      - LNet local NI netlink properties
+ *                                     attributes that describe local NI
+ *
+ * @LNET_NET_LOCAL_NI_ATTR_UNSPEC:     unspecified attribute to catch errors
+ *
+ * @LNET_NET_LOCAL_NI_ATTR_NID:                NID that represents this NI (NLA_STRING)
+ * @LNET_NET_LOCAL_NI_ATTR_STATUS:     State of this NI (NLA_STRING)
+ * @LNET_NET_LOCAL_NI_ATTR_INTERFACE:  Defines physical devices (NLA_NESTED)
+ *                                     Used to be many devices but no longer.
+ */
+enum lnet_net_local_ni_attrs {
+       LNET_NET_LOCAL_NI_ATTR_UNSPEC = 0,
+
+       LNET_NET_LOCAL_NI_ATTR_NID,
+       LNET_NET_LOCAL_NI_ATTR_STATUS,
+       LNET_NET_LOCAL_NI_ATTR_INTERFACE,
+
+       __LNET_NET_LOCAL_NI_ATTR_MAX_PLUS_ONE,
+};
+
+#define LNET_NET_LOCAL_NI_ATTR_MAX (__LNET_NET_LOCAL_NI_ATTR_MAX_PLUS_ONE - 1)
+
+/** enum lnet_net_local_ni_intf_attrs - LNet NI device netlink properties
+ *                                     attribute that reports the device
+ *                                     in use
+ *
+ * @LNET_NET_LOCAL_NI_INTF_ATTR_UNSPEC:        unspecified attribute to catch errors
+ *
+ * @LNET_NET_LOCAL_NI_INTF_ATTR_TYPE:  Physcial device interface (NLA_STRING)
+ */
+enum lnet_net_local_ni_intf_attrs {
+       LNET_NET_LOCAL_NI_INTF_ATTR_UNSPEC = 0,
+
+       LNET_NET_LOCAL_NI_INTF_ATTR_TYPE,
+
+       __LNET_NET_LOCAL_NI_INTF_ATTR_MAX_PLUS_ONE,
+};
+
+#define LNET_NET_LOCAL_NI_INTF_ATTR_MAX (__LNET_NET_LOCAL_NI_INTF_ATTR_MAX_PLUS_ONE - 1)
+
+/** enum lnet_net_local_ni_tunables_attrs            - LNet NI tunables
+ *                                                     netlink properties.
+ *                                                     Performance options
+ *                                                     for your NI.
+ *
+ * @LNET_NET_LOCAL_NI_TUNABLES_ATTR_UNSPEC:            unspecified attribute
+ *                                                     to catch errors
+ *
+ * @LNET_NET_LOCAL_NI_TUNABLES_ATTR_PEER_TIMEOUT:      Timeout for LNet peer.
+ *                                                     (NLA_S32)
+ * @LNET_NET_LOCAL_NI_TUNABLES_ATTR_PEER_CREDITS:      Credits for LNet peer.
+ *                                                     (NLA_S32)
+ * @LNET_NET_LOCAL_NI_TUNABLES_ATTR_PEER_BUFFER_CREDITS: Buffer credits for
+ *                                                      LNet peer. (NLA_S32)
+ * @LNET_NET_LOCAL_NI_TUNABLES_ATTR_CREDITS:           Credits for LNet peer
+ *                                                     TX. (NLA_S32)
+ */
+enum lnet_net_local_ni_tunables_attr {
+       LNET_NET_LOCAL_NI_TUNABLES_ATTR_UNSPEC = 0,
+
+       LNET_NET_LOCAL_NI_TUNABLES_ATTR_PEER_TIMEOUT,
+       LNET_NET_LOCAL_NI_TUNABLES_ATTR_PEER_CREDITS,
+       LNET_NET_LOCAL_NI_TUNABLES_ATTR_PEER_BUFFER_CREDITS,
+       LNET_NET_LOCAL_NI_TUNABLES_ATTR_CREDITS,
+       __LNET_NET_LOCAL_NI_TUNABLES_ATTR_MAX_PLUS_ONE,
+};
+
+#define LNET_NET_LOCAL_NI_TUNABLES_ATTR_MAX (__LNET_NET_LOCAL_NI_TUNABLES_ATTR_MAX_PLUS_ONE - 1)
+
 struct lnet_ni {
        /* chain on the lnet_net structure */
        struct list_head        ni_netlist;